Blade of an axial fan



FIG. 1 is a perspective view of a blade of an axial fan, showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a left-side view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for a blade of an axial fan, as shown and described. 